EP0133825B1 - Matériau composite souple et son procédé de fabrication - Google Patents
Matériau composite souple et son procédé de fabrication Download PDFInfo
- Publication number
- EP0133825B1 EP0133825B1 EP84401239A EP84401239A EP0133825B1 EP 0133825 B1 EP0133825 B1 EP 0133825B1 EP 84401239 A EP84401239 A EP 84401239A EP 84401239 A EP84401239 A EP 84401239A EP 0133825 B1 EP0133825 B1 EP 0133825B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thermoplastic
- sheath
- powder
- fibers
- flexible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/20—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wires
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
- B29B15/122—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/06—Rod-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/003—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised by the matrix material, e.g. material composition or physical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
- B29C70/086—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers and with one or more layers of pure plastics material, e.g. foam layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/20—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/542—Placing or positioning the reinforcement in a covering or packaging element before or during moulding, e.g. drawing in a sleeve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/081—Specified dimensions, e.g. values or ranges
- B29C2949/082—Diameter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/156—Coating two or more articles simultaneously
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/10—Cords, strands or rovings, e.g. oriented cords, strands or rovings
- B29K2105/101—Oriented
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/251—Particles, powder or granules
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/902—High modulus filament or fiber
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/23—Sheet including cover or casing
- Y10T428/237—Noninterengaged fibered material encased [e.g., mat, batt, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2918—Rod, strand, filament or fiber including free carbon or carbide or therewith [not as steel]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2964—Artificial fiber or filament
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer
Definitions
- the present invention relates to a composite material consisting of a flexible sheath covering a wick of continuous fibers of any kind, mineral, organic or metallic impregnated with powder of thermoplastic materials with a melting point greater than or equal to that of the sheath flexible.
- the composite material according to the invention overcomes these drawbacks. It comprises a wick of continuous fibers coated with thermoplastic resin, characterized in that it consists of a flexible sheath of thermoplastic material covering the wick of fibers impregnated with powders of thermoplastic materials, the melting point of which is greater than or equal to that of the flexible sheath.
- This material is to remove the homogeneity between the fibers and the sheath.
- This material can have a very fine sheath retaining all its flexibility, the fibers, isolated from the sheath by the coating powder, and under reduced stress, retaining their own characteristics inside the sheath.
- This wick loaded with fine thermoplastic powder then receives by extrusion, coating from a solution or dispersion a continuous outer thermoplastic envelope, leaving the grains of powder free to play with the fibers inside itself. .
- the reinforcing fibers may be glass fibers of titer preferably between 160 and 320 tex for covering with common polymers such as cited below.
- Fibers of titer between 1,200 and 2,400 tex have been used for covering with very high fluidity polymers also cited below.
- polyamides 6, 11 and 12 polypropylene, polyethylenes, PVDF, polyesters.
- This airlock (8) has the particularity of being mounted both on the fluidization tank and on the cover angle head (9) by means of two thermal seals (16) and (17), visible on Fig. 2. These seals minimize the heat exchange between the airlock (8) and on the one hand the cover angle head (9), which is a source of heat generation due to its positive heating (not shown) and on the other hand the end of the fluidization tank (4).
- This thermal insulation is used to prevent gelation of powder on contact with hot surfaces on which it could melt.
- the insulator (16) is machined in a PTFE "Teflon" plate and the insulator (17) is sintered from zirconium oxide powder.
- a light current of air is generated in the airlock (8) by a low flow pump (15).
- This pump is of the type of laboratory roller pumps as supplied by Ets. W. Bachofen in Basel.
- the air pressures that these pumps are capable of supplying are in the range of 0.10 to 0.30 bar and their flow can be made as low as possible for the generation of a current called "bubble to bubble by reducing the speed of rotation of the roller rotor with which they are fitted and which produces the movement of air in a flexible duct crushed by said roller rotor.
- Small cyclones not shown so as not to load FIG. 1, allow the excess air introduced by the pump (15) to escape and recover the small quantities of entrained powder.
- the wick filled with fine powder enters the head (9, 9 ').
- the angle head (9, 9 ') is supplied with plastic sheathing material by the extruder (10) represented by its body for joining with the head.
- the cladding plastic material leaves the head in a form known as tubing ", that is to say that the outlet diameter of the plastic sheath is defined by a punch with a diameter greater than the outside diameter of the wick, and that the sheath of molten material shrinks due to the traction on the profile emerging from the die and comes into contact with the wick after a course in the air of about 5 mm.
- This covering head is advantageously arranged with a vertical axis.
- the profile is practically cold after a run in the air of about one meter. It remains flexible and passes over a grooved pulley (11) with a diameter of approximately 600 mm.
- a coating by extruding a wicking (Rowing) of 320 tex, loaded with a fine orgasol 1002 powder produced by the Applicant, is carried out with the Rilsan AMNO from the Applicant as a sheathing resin.
- Such a part is for example constituted by a cylinder provided with a bottom, with a length of 100 mm, with a bore of 16 mm and with a wall thickness of 4 mm.
- a hole is drilled through the body (21) of the jack, and it is connected by means of a fitting (22) to a source of fluid under pressure.
- a piston In the bore of the body freely slides a piston (24) provided with a lip seal (25).
- This piston is, for the purposes of burst tests, permanently made of steel.
- the section S is 2 x 10 ⁇ 4 m 2 .
Description
- La présente invention se rapporte à un matériau composite constitué d'une gaine souple recouvrant une mèche de fibres continues de toute nature, minérales, organiques ou métalliques imprégnées à coeur de poudre de matières thermoplastiques de point de fusion supérieur ou égal à celui de la gaine souple.
- Le matériau composite selon l'invention est principalement caractérisé par sa souplesse. Il est connu du brevet français 2 516 441 d'imprégner à coeur de poudres de matières thermoplastiques des mèches de fibres puis de conformer à chaud l'ensemble. Dans ces conditions on obtient un matériau thermoplastique homogène armé de fibres. Un tel matériau conserve pratiquement la souplesse du thermoplastique d'origine, mais, en fonction de son épaisseur, on aboutit vite à un produit rigide. En outre, les fibres noyées dans le thermoplastique deviennent cassantes à la moindre flexion du matériau.
- Cette rigidité et cette fragilisation des fibres se révèlent rédhibitoires dans certaines applications dans lesquelles par exemple le composite doit être enroulé autour de pièces de faible rayon de courbure comme on en trouve dans l'industrie automobile, ou encore dans lesquelles on souhaite conserver l'uniformité de la fibre comme par exemple le gainage de fibres optiques ou conductrices.
- Le matériau composite selon l'invention permet de remédier à ces inconvénients. Il comprend une mèche de fibres continues enrobée de résine thermoplastique caractérisé en ce qu'il est constitué d'une gaine souple en matière thermoplastique recouvrant la mèche de fibres imprégnées de poudres de matières thermoplastiques dont le point de fusion est supérieur ou égal à celui de la gaine souple.
- L'invention concerne également le procédé permettant d'obtenir ce matériau composite.
- L'intérêt de ce matériau est de supprimer l'homogénéité entre les fibres et la gaine. Ce matériau peut posséder une gaine très fine conservant toute sa souplesse, les fibres, isolées de la gaine par la poudre d'enrobage, et sous contrainte réduite, conservant leurs propres caractéristiques à l'intérieur de la gaine.
- Dans le procédé visé par l'invention, on imprègne de particules de poudre de matière thermoplastique une mèche de fibres continues parallèles, c'est-à-dire non torsadées, en profitant d'un épanouissement momentané de ces fibres, par immersion desdites fibres dans un lit fluidisé de particules de poudre. Ces particules de poudre se groupent autour de chaque fibre individuelle de la mèche du fait des charges électrostatiques développées par des procédés connus (généralement électrostatiques, balais ou galets frotteurs, etc.).
- Par réunion de ces fibres individuelles chargées de poudre fine de matière thermoplastique on se trouve en présence d'une mèche de fibres parallèles imprégnées à coeur de poudre fine et garnie également sur la périphérie d'une couche de la même poudre fine.
- Cette mèche chargée de poudre fine thermoplastique reçoit alors par extrusion, enduction à partir d'une solution ou d'une dispersion une enveloppe extérieure continue thermoplastique, laissant les grains de poudre libres de jouer avec les fibres à l'intérieur d'elle-même.
- En résumé le procédé de fabrication du matériau composite selon l'invention consistant à enrober une mèche de fibres continues d'une poudre de résines thermoplastiques est caractérisé en ce qu'on gaine l'ensemble d'une matière thermoplastique dont le point de fusion est inférieur ou égal à celui de la poudre de matière thermoplastique d'enrobage.
- Grâce à ce procédé, il est possible d'obtenir des matériaux composites restant souples, pouvant être pliés et même noués sans casser. Ces matériaux composites souples peuvent ainsi se prêter à des opérations de tressage, tissage et même tricotage, ouvrant de grandes possibilités à l'emploi de ce matériau, inaccessibles aux matériaux de l'art antérieur du fait de leur fragilité au pliage, comme il a été dit plus haut.
- Il est possible d'obtenir des matériaux composites souples présentant un taux de fibres de renforcement atteignant 50 % en volume et 70 % en poids.
- Les fibres de renforcement peuvent être des fibres de verre de titre compris de préférence entre 160 et 320 tex pour recouvrement par des polymères courants tels que cités ci-après.
- Des fibres de titre compris entre 1 200 et 2400 tex ont été employées pour recouvrement par des polymères de très haute fluidité cités également ci-après.
- D'autres fibres sont de la famille des aramides (superpolyamides à base aromatique) tels que les KEVLAR. Un titre préféré est, par exemple, celui de 1 580 décitex. Le recouvrement peut s'effectuer avec les mêmes types de polymères que pour les fibres de verre.
- Enfin, on peut employer des fibres de carbone, dont le titre est exprimé en filaments (ou plus pratiquement en kilofilaments). C'est ainsi que des titres compris dans la fourchette de 3 à 12 kilofilaments sont les plus appropriés à la réalisation de matériaux composites souples selon l'invention.
- Les résines en poudre fine introduites au coeur de la mèche de fibres continues convenant bien pour la mise en oeuvre de l'invention sont les poudres de polyamides c'est-à-dire les polymères obtenus par polycondensation de lactames (caprolactame, lauryllactame etc.) ou aminoacides tels que le sel de l'acide adipique et de l'hexaméthylènediamine, l'acide aminoundécanoïque, les copolymères polyamidi- ques etc.
- Mais il est bien entendu que d'autres poudres de matières thermoplastiques peuvent être mises en oeuvre telles que poudres de polypropylène, de polyéthylène, de PVC, de polyesters homopolymères et copolymères, le polyfluorure de vinylidène etc.
- Le recouvrement des mèches continues chargées de poudre fine qui est une caractéristique de l'invention est tel qu'il s'opère sans porter à la fusion les particules de poudre fine imprégnant la mèche.
- Il utilise soit des résines à plus bas point de fusion que celui de la poudre, telles que le terpolymère 6/6.6/12 dont le point de fusion est de 105 °C, soit des résines de même nature que la poudre, mais seulement de fluidité à l'état fondu plus élevée, ceci pour satisfaire aux exigences du recouvrement par extrusion.
- Ce sont par exemple des polyamides 6, 11 et 12, du polypropylène, des polyéthylènes, du PVDF, des polyesters.
- Dans une variante du procédé selon l'invention, l'imprégnation de la mèche épanouie par la poudre fine est obtenue en traversant un bain d'une dispersion aqueuse ou organique de poudre fine telle que décrite dans le brevet français de la demanderesse n° 81 03528, suivie d'un séchage.
- On peut, dans une autre variante, enrober la mèche contenant les grains de poudre par l'un ou l'autre des procédés suivants, sans sortir du cadre de l'invention :
- - soit en la faisant passer dans un fondoir contenant la matière de gainage à l'état fondu,
- - soit en la faisant passer successivement dans un premier bain liquide d'un monomère ou oligomère et, ensuite, dans un deuxième bain également liquide d'un monomère ou oligomère réagissant avec le premier pour donner une matière thermoplastique, les couples utilisés pouvant être :
- polyols-polyisocyanates, conduisant à des polyuréthannes ou polyuréthannes-polyurées,
- résines époxy avec durcisseur,
- résines époxy-polymères dicarboxyliques etc.
- Un dispositif permettant de réaliser pratiquement l'objet de l'invention qui est un matériau composite souple contenant des mèches de fibres continues imprégnées à coeur de poudre fine thermoplastique sans que ces particules de poudre fine aient été portées à la fusion est décrit ci-après. Il est, bien entendu, donné à titre d'exemple non limitatif. Dans cette description on se réfère aux dessins ci-joints qui montrent :
- Figure 1 une vue en élévation et en coupe d'un mode de réalisation.
- Figure 2 une vue en coupe de la filière de recouvrement.
- Figure 3 une vue en coupe d'un objet fabriqué selon l'invention et monté sur un banc d'essai d'éclatement.
- Par ailleurs la Fig. 4 présente une vue en coupe d'un profilé souple objet de l'invention.
- Le procédé d'obtention du matériau composite souple selon l'invention fonctionne pratiquement comme on peut le voir sur la Fig. 1 :
- En (1) la mèche continue de fibres se déroule du dévidoir sous la traction engendrée par le duo de cylindres d'appel 2, 3. La mèche pénètre par un sas étanche (7) dans une cuve de fluidisation entièrement fermée (4) où sous l'action d'air comprimé (6) admis dans le caisson inférieur de la poudre fine thermoplastique (5) est mise en état de fluidisation. La mèche est épanouie ou défibrée par des moyens connus tels que galets ou cylindres cannelés. Elle se charge électrostatiquement par frottement sur ces organes puis, garnie de poudre fine, se rend à la sortie de la cuve de fluidisation qui est un second sas étanche (8).
- Ce sas (8) présente la particularité d'être monté à la fois sur la cuve de fluidisation et sur la tête d'équerre de recouvrement (9) par l'intermédiaire de deux joints thermiques (16) et (17), visibles sur la Fig. 2. Ces joints réduisent au maximum les échanges thermiques entre le sas (8) et d'une part la tête d'équerre de recouvrement (9), qui est une source de génération de chaleur du fait de son chauffage positif (non représenté) et d'autre part l'extrémité de la cuve de fluidisation (4). Cette isolation thermique sert à éviter la gélification de poudre au contact des surfaces chaudes sur lesquelles elle pourrait fondre. Suivant une réalisation préférée de l'installation, l'isolant (16) est usiné dans une plaque de PTFE « Téflon et l'isolant (17) est fritté à partir de poudre d'oxyde de zirconium.
- L'étanchéité des raccordements cuve de fluidisation 4/sas 8/tête d'équerre (9) est destinée à éviter que des particules de poudre ne s'échappent à l'extérieur de l'installation et ne provoquent des accidents par inflammation.
- Pour compléter l'action de refoulement vers la cuve de toute particule de poudre fine non fixée par charge électrostatique sur la mèche, un léger courant d'air est généré dans le sas (8) par une pompe à faible débit (15). Cette pompe est du type des pompes à galets de laboratoire telles qu'en fournissent les Ets. W. Bachofen à Bâle. Les pressions d'air que ces pompes sont capables de fournir sont comprises dans la fourchette de 0.10 à 0.30 bar et leur débit peut être rendu aussi faible que possible pour la oéneration d'un courant dit « bulle à bulle par réduction de la vitesse de rotation du rotor à galets dont elles sont équipées et qui produit le déplacement de l'air dans un conduit souple écrasé par ledit rotor à galets.
- Des petits cyclones, non représentés pour ne pas charger la Fig. 1, permettent de laisser s'échapper l'excès d'air introduit par la pompe (15) et de récupérer les petites quantités de poudre entraînée.
- A la sortie du sas (8), la mèche garnie de poudre fine pénètre dans la tête (9, 9').
- Il a été trouvé avantageux de munir le passage guide-fil (19) d'une entrée élargie (18), de façon à éviter la gélification de la poudre par fusion lors du contact prolongé avec le métal de la tête d'équerre (9, 9-).
- Il a été trouvé avantageux de donner au conduit d'entrée (18) d'une section comprise entre 1,5 fois et 3 fois la section habituelle donnée au guide-fil dans la technique de recouvrement de câbles électriques et téléphoniques de section correspondant à celle de la mèche.
- La tête d'équerre (9, 9') est approvisionnée en matière plastique de gainage par l'extrudeuse (10) représentée par son corps de jonction avec la tête. La matière plastique de gainage sort de la tête sous une forme dite en tubant », c'est-à-dire que le diamètre de sortie de la gaine plastique est défini par un poinçon de diamètre plus fort que le diamètre extérieur de la mèche, et que la gaine de matière fondue se rétrécit du fait de la traction sur le profilé émergeant de la filière et vient au contact de la mèche après un parcours dans l'air de 5 mm environ.
- Cette tête de recouvrement est avantageusement disposée avec un axe vertical. Le profilé est pratiquement froid après un parcours dans l'air d'un mètre environ. Il reste souple et passe sur une poulie à gorge (11) d'un diamètre de 600 mm environ.
- Il est constitué d'un gainage souple (31) recouvrant une mèche de fibres (33) imprégnée de poudre thermoplastique (32) ainsi qu'on peut le voir dans la figure 4.
- Un recouvrement par extrusion d'une mèche (Rowing) de 320 tex, chargée d'une poudre fine orgasol 1002 produite par la demanderesse, est réalisé avec pour résine de gainage le Rilsan AMNO de la demanderesse.
- Les caractéristiques des produits sont les suivantes :
- Poudre fine = polyamide 6
- densité apparente = 0,50
- Melt Index compris entre 20 et 60 (1)
- Gaine = polyamide 12
- densité = 1,5
- Melt Index compris entre 10 et 40 (2)
- (1) mesuré à 235 °C avec poids de 1 kg
- (2) mesuré à 190 °C avec poids de 2 kg.
- Fibre de verre = densité 2,40
- Extrudeuse Maillefer 30
- Tête de recouvrement du type « en tubant »
- Diamètre de filière = 3,5 mm
- Diamètre du poinçon = 2,9 mm
- Diamètre du guide-fil = 1,5 mm
- Diamètre d'entrée = 2,4 mm
- Température filière = 195 °C
- Vitesse de tirage = 100 m/mn
-
- On utilise un matériau composite selon l'invention pour renforcer des pièces moulées par injection en matière plastique et destinées à travailler avec une surpression interne, telles que des corps de vérins.
- Une telle pièce est par exemple constituée par un cylindre muni d'un fond, d'une longueur de 100 mm, d'un alésage de 16 mm et d'une épaisseur de paroi de 4 mm.
- Cette pièce peut être réalisée suivant l'un des quatre modes ci-après, afin de permettre des essais comparatifs :
- 1 - Pièce réalisée par injection en utilisant le polyamide 11 allié à la fibre de verre courte (RILSAN ZMO de la demanderesse).
- Il - Pièce réalisée avec le même moule et la même matière plastique que dans l'essai I, mais après mise en place sur le noyau du moule avant l'opération d'injection d'une couche unique (23) du matériau composite souple suivant l'exemple 1, obtenue par enroulement à spires jointives de ce composite, sans aucune tension.
- III - Pièce réalisée comme dans l'essai II, mais en appliquant pendant l'opération d'enroulement une tension de 2 daN sur le composite.
- IV - Pièce réalisée comme l'essai III. mais où la couche comporte deux épaisseurs superposées de composite, la tension d'enroulement étant maintenue à 2 daN.
- Pour mesurer les pressions d'éclatement des pièces obtenues suivant les quatre modes ainsi définis, on perce un trou à travers le corps (21) du vérin, et on le relie par l'intermédiaire d'un raccord (22) à une source de fluide sous pression. Dans l'alésage du corps coulisse librement un piston (24) muni d'un joint à lèvres (25).
- Ce piston est, pour les besoins des essais d'éclatement, réalisé à demeure en acier.
- On place l'ensemble constitué par le vérin en matière plastique et le piston en acier dans une cage indéformable formée par deux plateaux (26, 26') et deux colonnes (27, 27). On interpose entre la tige du piston (24) et le plateau (26') un dynamomètre (28).
-
- Du fait de la valeur choisie pour l'alésage, la section S est de 2 x 10‾4 m2.
-
- On voit de la sorte très clairement le gain de résistance mécanique apporté par le matériau composite souple, surtout lorsqu'il est enroulé avec tension. Par ailleurs, étant donnée la petitesse du diamètre de bobinage, il est clair que seul un composite souple selon l'invention peut se prêter à cette opération.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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AT84401239T ATE29421T1 (de) | 1983-06-28 | 1984-06-15 | Flexibles verbundmaterial und verfahren zu seiner herstellung. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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FR8310632A FR2548084B1 (fr) | 1983-06-28 | 1983-06-28 | Procede de fabrication d'objets composites et objets composites obtenus |
FR8310632 | 1983-06-28 | ||
FR8405627 | 1984-04-10 | ||
FR8405627A FR2562467B1 (fr) | 1984-04-10 | 1984-04-10 | Materiau composite souple et son procede de fabrication |
Publications (2)
Publication Number | Publication Date |
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EP0133825A1 EP0133825A1 (fr) | 1985-03-06 |
EP0133825B1 true EP0133825B1 (fr) | 1987-09-09 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP84401239A Expired EP0133825B1 (fr) | 1983-06-28 | 1984-06-15 | Matériau composite souple et son procédé de fabrication |
Country Status (3)
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US (2) | US4614678A (fr) |
EP (1) | EP0133825B1 (fr) |
DE (1) | DE3465922D1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR960010922A (ko) * | 1994-09-06 | 1996-04-20 | 연속적 섬유를 함유하는 유연한 열가소성 복합 필라멘트의 제법공정 |
Families Citing this family (81)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61129629A (ja) * | 1984-11-29 | 1986-06-17 | Canon Inc | 複合プラスチック遮光羽根 |
JPS61203588A (ja) * | 1985-03-06 | 1986-09-09 | 日本ユニカーボン株式会社 | 融雪用または床暖房用のカーボン製発熱装置 |
JPH064246B2 (ja) * | 1985-12-09 | 1994-01-19 | 富士スタンダ−ドリサ−チ株式会社 | 柔軟性複合材料及びその製造方法 |
US4743413A (en) * | 1986-07-23 | 1988-05-10 | Galichon Jean P | Method of manufacturing thermostable pieces made from composite materials and the pieces thus obtained |
JPS6340764A (ja) * | 1986-08-02 | 1988-02-22 | 株式会社アクロス | 無機質繊維強化炭素複合材料用の柔軟性中間材及びその製造方法 |
DE3704035A1 (de) * | 1986-09-01 | 1988-03-03 | Menzolit Gmbh | Verfahren zur herstellung eines wirrfaserstoffs aus glasfasern als zwischenprodukt fuer die herstellung glasfaserverstaerkter kunststofformteile sowie vorrichtung zur durchfuehrung des verfahrens |
FR2603891B1 (fr) * | 1986-09-17 | 1990-12-14 | Atochem | Procede de fabrication de materiau composite a base de polyamide renforcee de fibres longues |
US5026410A (en) * | 1987-03-12 | 1991-06-25 | Owens-Corning Fiberglas Corporation | Process for impregnating filament strands |
FR2613661B1 (fr) * | 1987-04-09 | 1989-10-06 | Atochem | Procede de fabrication de profiles de resine thermoplastique renforces de fibres continues, appareillage pour leur obtention |
GB2204888A (en) * | 1987-05-18 | 1988-11-23 | Textilver Sa | Fibre reinforced matrix |
FR2619399B1 (fr) * | 1987-08-11 | 1991-10-25 | Brochier Sa | Structure textile pour la realisation de stratifies a hautes proprietes mecaniques |
US5206085A (en) * | 1987-08-13 | 1993-04-27 | Across Co., Ltd. | Preformed yarn useful for forming composite articles and process for producing same |
JPH07122190B2 (ja) * | 1987-08-13 | 1995-12-25 | 株式会社アクロス | 熱可塑性複合材料用のプリフォ−ムヤ−ン及びその製造方法 |
US4939002A (en) * | 1987-12-15 | 1990-07-03 | General Electric Company | Poltrusion apparatus and method for impregnating continuous lengths of multi-filament and multi-fiber structures |
FR2630967B1 (fr) * | 1988-05-09 | 1993-12-10 | Atochem | Procede de fabrication de resines thermoplastiques renforcees de fibres longues |
GB8822521D0 (en) * | 1988-09-26 | 1988-11-02 | Tech Textiles Ltd | Method of producing formable composite material |
FR2638467B1 (fr) * | 1988-10-28 | 1991-11-08 | Saint Gobain Vetrotex | |
FI83490C (fi) | 1989-05-10 | 1991-07-25 | Neste Oy | Foerfarande och anordning foer framstaellning av ett fiberstaerkt material. |
US5134959A (en) * | 1989-06-19 | 1992-08-04 | General Electric Company | Apparatus for coating fibers with thermoplastics |
US5006373A (en) * | 1989-06-19 | 1991-04-09 | General Electric Company | Method and apparatus for coating fibers with thermoplastics |
FR2648957B1 (fr) * | 1989-06-22 | 1991-11-15 | France Etat Armement | Materiau composite a caracteristiques modulables par preimpregnation d'une fibre continue |
US5447793A (en) * | 1989-10-20 | 1995-09-05 | Montsinger; Lawrence V. | Apparatus and method for forming fiber filled thermoplastic composite materials |
US5176775A (en) * | 1989-10-20 | 1993-01-05 | Montsinger Lawrence V | Apparatus and method for forming fiber filled thermoplastic composite materials |
NL9000213A (nl) * | 1990-01-29 | 1991-08-16 | Besouw Bv Van | Werkwijze voor het vormen van een voorwerp uit versterkte kunststof en balk uit versterkte kunststof. |
US5123373A (en) * | 1990-02-26 | 1992-06-23 | Board Of Trustees Operating Michigan State University | Method for fiber coating with particles |
US5057338A (en) * | 1990-05-16 | 1991-10-15 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Process for application of powder particles to filamentary materials |
FR2670790B1 (fr) * | 1990-12-19 | 1995-01-13 | Aerospatiale | Demi-produit et materiau composites thermoplastiques a polymeres a cristaux liquides et procede de fabrication du materiau. |
US5176868A (en) * | 1991-01-24 | 1993-01-05 | Prince Manufacturing, Inc. | Long fiber reinforced thermoplastic frame especially for a tennis racquet |
US5137781A (en) * | 1991-03-22 | 1992-08-11 | E. I. Du Pont De Nemours And Company | Protected brittle fiber yarns |
FR2687095B1 (fr) * | 1992-02-06 | 1995-06-09 | Vetrotex France Sa | Procede de fabrication d'un fil composite et produits composites obtenus a partir dudit fil. |
IT1254197B (it) * | 1992-02-06 | 1995-09-14 | Donegani Guido Ist | Procedimento per la preparazione di corpi formati in polimeri termoplastici rinforzati con fibra lunga |
FR2687094A1 (fr) * | 1992-02-06 | 1993-08-13 | Vetrotex France Sa | Dispositif de gainage d'un materiau filiforme par une matiere a l'etat fondu. |
IT1256080B (it) * | 1992-07-31 | 1995-11-27 | Enichem | Materiale composito a matrice mista, termoplastica e termoindurente, rinforzato con fibre continue. |
IT1256081B (it) * | 1992-07-31 | 1995-11-27 | Enichem Spa | Materiale composito a matrice mista rinforzato con fibre continue |
IT1255962B (it) * | 1992-11-27 | 1995-11-17 | Eniricerche Spa | Procedimento per la preparazione di un materiale composito termo - plastico rinforzato con fibre continue |
WO1994025702A1 (fr) * | 1993-05-03 | 1994-11-10 | Minnesota Mining And Manufacturing Company | Elements de renfort pour compositions moulables |
IT1265070B1 (it) * | 1993-05-18 | 1996-10-30 | Eniricerche Spa | Filamento composito termoplastico flessibile contenente fibre continue e procedimento per la sua preparazione |
JPH07216104A (ja) * | 1994-01-26 | 1995-08-15 | Polyplastics Co | 長繊維強化樹脂構造物の製造方法 |
US5756206A (en) * | 1995-03-15 | 1998-05-26 | Custom Composite Materials, Inc. | Flexible low bulk pre-impregnated tow |
JPH08323748A (ja) * | 1995-05-29 | 1996-12-10 | Toho Rayon Co Ltd | 成形材料及びその製造方法 |
WO1997004150A1 (fr) * | 1995-07-20 | 1997-02-06 | E.I. Du Pont De Nemours And Company | Fil stable en presence d'humidite, souple et adhesif de structure |
US6533882B1 (en) | 1996-08-12 | 2003-03-18 | Owens Corning Fiberglas Technology, Inc. | Chemical treatments for fibers and wire-coated composite strands for molding fiber-reinforced thermoplastic composite articles |
US6099910A (en) * | 1996-08-12 | 2000-08-08 | Owens Fiberglas Technology, Inc. | Chemical treatments for fibers |
AU765900B2 (en) * | 1996-08-12 | 2003-10-02 | Owens Corning | Chemical treatments for fibers and wire-coated composite strands for molding fiber-reinforced thermoplastic composite articles |
USH1715H (en) * | 1996-08-13 | 1998-04-07 | Babolat Vs | Process and device for the manufacture of a string for stringing tennis rackets or the like and string resulting therefrom |
US6258453B1 (en) | 1996-09-19 | 2001-07-10 | Lawrence V. Montsinger | Thermoplastic composite materials made by rotational shear |
US5895622A (en) * | 1997-04-07 | 1999-04-20 | Purdue Research Foundation | Method and apparatus for composite manufacture |
US5876706A (en) * | 1997-08-18 | 1999-03-02 | S. C. Johnson & Son, Inc. | Air freshener dispenser device with taper candle feature |
US6348255B1 (en) | 1998-04-29 | 2002-02-19 | Brockton Plastics, Inc. | Synthetic rawhide lace |
US6162536A (en) * | 1999-02-10 | 2000-12-19 | Montsinger; Lawrence V. | Conductive long fiber polyvinyl chloride composites |
FR2819434B1 (fr) * | 2001-01-12 | 2003-05-30 | Voultaine De Transformes Ind S | Procede de fabrication d'un element de renfort longitudinal a base de fibre de carbone, fibre ainsi obtenue, et pneumatique incorporant une telle fibre |
US20020190451A1 (en) * | 2001-06-01 | 2002-12-19 | The University Of Akron | Fiber-reinforced composite springs |
US8802232B2 (en) | 2001-06-04 | 2014-08-12 | Ocv Intellectual Capital, Llc | Powder coated roving for making structural composites |
US20020187346A1 (en) * | 2001-06-04 | 2002-12-12 | Adzima Leonard J. | Powder coated roving for making structural composite |
PT1418064E (pt) * | 2002-11-08 | 2008-05-09 | Campagnolo Srl | Processo para fabricar uma roda com raios para bicicletas |
DE60320240T2 (de) * | 2003-06-26 | 2009-06-25 | Campagnolo S.R.L. | Leichter gemachte Fahrradfelge und Verfahren zur Herstellung einer solchen Felge |
EP1506882B1 (fr) * | 2003-08-11 | 2008-07-09 | Campagnolo Srl | Jante composite de bicyclette et procédé de sa fabrication |
EP1795370B1 (fr) * | 2005-12-09 | 2009-03-25 | Prince Sports, Inc. | Roue avec structure de rayon et de jante en plusieurs tuyaux |
FR2918081B1 (fr) * | 2007-06-27 | 2009-09-18 | Cabinet Hecke Sa | Procede d'impregnation de fibres continues par une matrice polymerique composite renfermant un polymere thermoplastique |
ITMI20072231A1 (it) * | 2007-11-26 | 2009-05-27 | Campagnolo Srl | Cerchio per ruota di bicicletta e ruota di bicicletta comprendente tale cerchio |
ITMI20072232A1 (it) * | 2007-11-26 | 2009-05-27 | Campagnolo Srl | Cerchio per ruota di bicicletta e ruota di bicicletta comprendente tale cerchio |
EP2100751B1 (fr) * | 2008-03-14 | 2011-05-18 | Campagnolo S.r.l. | Jante pour roue de bicyclette en materiau composite et roue de bicyclette comprenant une telle jante |
WO2011005947A1 (fr) * | 2009-07-09 | 2011-01-13 | Ohio University | Électrode de décharge composite à base de fibre de carbone |
US20110014467A1 (en) * | 2009-07-16 | 2011-01-20 | Brown Nancy E | Extrusion coated non-twisted yarn |
CN103477020A (zh) | 2011-04-12 | 2013-12-25 | 提克纳有限责任公司 | 用于海底应用的脐带 |
WO2012142096A1 (fr) | 2011-04-12 | 2012-10-18 | Ticona Llc | Âme composite pour câbles électriques de transmission |
KR20140015462A (ko) | 2011-04-12 | 2014-02-06 | 티코나 엘엘씨 | 연속 섬유 보강된 열가소성 봉 및 그를 제조하기 위한 인발 방법 |
TWI565844B (zh) | 2011-07-29 | 2017-01-11 | 東邦特耐克絲歐洲股份有限公司 | 預浸漬樹脂之撓性增強纖維紗線 |
DE102012112937A1 (de) * | 2012-12-21 | 2014-06-26 | Leichtbau-Zentrum Sachsen Gmbh | Vorrichtung und Verfahren zur Herstellung einer Feder aus Faserverbundwerkstoff |
TWI602671B (zh) | 2013-01-28 | 2017-10-21 | 東邦特耐克絲歐洲股份有限公司 | 浸漬強化纖維紗及其於製造複合材料之用途 |
US10538014B2 (en) | 2013-11-04 | 2020-01-21 | Sabic Global Technologies B.V. | Process for producing a glass fibre-reinforced thermoplastic polymer composition |
FR3017329B1 (fr) * | 2014-02-13 | 2016-07-29 | Arkema France | Procede de fabrication d'un materiau fibreux pre-impregne de polymere thermoplastique en lit fluidise |
US10336006B1 (en) * | 2015-05-19 | 2019-07-02 | Southern Methodist University | Methods and apparatus for additive manufacturing |
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IT201600089581A1 (it) * | 2016-09-30 | 2018-03-30 | Massimo Sottocorna | Processo di produzione di un filato di carbonio o altra fibra tecnica, rivestito ed impregnato con polimeri termoplastici finalizzato ad ottenere un tessuto a matrice termoplastica, e filato ottenuto con questo processo denominato atc (advanced thermoplastic composite) |
US11319256B2 (en) * | 2017-09-19 | 2022-05-03 | Arris Composites Inc. | Fiber-reinforced metal-, ceramic-, and metal/ceramic-matrix composite materials and methods therefor |
CN108381816B (zh) * | 2018-02-08 | 2020-02-04 | 恩森(台州)化学有限公司 | 纤维覆膜编织装置及方法 |
FR3080387B1 (fr) | 2018-04-20 | 2020-11-13 | Mermet | Fil composite renforce, procede de preparation et textile comprenant un tel fil |
CN108914227A (zh) * | 2018-07-26 | 2018-11-30 | 湖北省宇涛特种纤维股份有限公司 | 挤压涂覆式皮芯纤维长丝的制备方法、模头组件和织物 |
CN112829343A (zh) * | 2020-12-31 | 2021-05-25 | 江苏亨博复合材料有限公司 | 一种用于peek生产的全自动生产线 |
CN112829344A (zh) * | 2020-12-31 | 2021-05-25 | 江苏亨博复合材料有限公司 | 一种基于碳纤维增强型的peek材料及其制备设备 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1049455B (fr) * | 1959-01-29 | |||
US1674156A (en) * | 1924-06-07 | 1928-06-19 | Boston Insulated Wire & Cable | Process for the manufacture of electric wires |
US2806248A (en) * | 1944-06-09 | 1957-09-17 | Burnie J Craig | Apparatus for making a threadlike member |
US2553690A (en) * | 1946-02-21 | 1951-05-22 | Breeze Corp | Method of forming shielded conductors |
NO117374B (fr) * | 1965-04-27 | 1969-08-04 | Standard Tel Kabelfab As | |
US3606632A (en) * | 1968-01-19 | 1971-09-21 | Anaconda Wire & Cable Co | Extruded cable covering with fibrous interlayer and apparatus |
US4419400A (en) * | 1981-10-26 | 1983-12-06 | Occidental Chemical Corporation | Pultruded reinforced phenolic resin products |
FR2516441A1 (fr) * | 1981-11-18 | 1983-05-20 | Spie Batignolles | Procede de fabrication de profiles en resine thermoplastique chargee de fibres, installation pour la mise en oeuvre, profiles obtenus et leur utilisation |
DE3207083A1 (de) * | 1982-02-26 | 1983-09-08 | Siemens AG, 1000 Berlin und 8000 München | Einrichtung zur herstellung eines elektrischen und/oder optischen kabels |
FR2548084B1 (fr) * | 1983-06-28 | 1985-12-13 | Ato Chimie | Procede de fabrication d'objets composites et objets composites obtenus |
US4534919A (en) * | 1983-08-30 | 1985-08-13 | Celanese Corporation | Production of a carbon fiber multifilamentary tow which is particularly suited for resin impregnation |
-
1984
- 1984-06-15 EP EP84401239A patent/EP0133825B1/fr not_active Expired
- 1984-06-15 DE DE8484401239T patent/DE3465922D1/de not_active Expired
- 1984-06-25 US US06/624,044 patent/US4614678A/en not_active Expired - Lifetime
-
1986
- 1986-12-19 US US06/911,002 patent/US4713139A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR960010922A (ko) * | 1994-09-06 | 1996-04-20 | 연속적 섬유를 함유하는 유연한 열가소성 복합 필라멘트의 제법공정 |
Also Published As
Publication number | Publication date |
---|---|
DE3465922D1 (en) | 1987-10-15 |
US4614678A (en) | 1986-09-30 |
US4713139A (en) | 1987-12-15 |
EP0133825A1 (fr) | 1985-03-06 |
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